You get that in any subreddit that's named too generically, because that's where newcomers to the subject will go by default. If you're just started programming

You get that in any subreddit that's named too generically, because that's where newcomers to the subject will go by default. If you're just started programming and you're learning Python, you're probably going to r/python to ask any questions you might have. If you just bought your first bicycle you're going to r/bicycle. So you end up with basic questions and people showing off their first 10 mile trip. Trying to fight it is futile, the only solution is to let the beginners have the most obvious community name, and let the more advanced users have their own with some name you won't stumble upon with only basic knowledge. I learned long ago that trying to point new users to specific newbie groups doesn't work, you'll come off as cranky and bitter, and eventually the majority of users are siding with the newcomers because thats how they identify as well.